Stalagmometer

Stalagmometer surface tension drop count method Tubes are available in 2.5mL, 3.5mL and 5.0mL sizes. Stalagmometer for Nickel, Acid Copper, Acid Zinc, Acid Dips and Pickles (5 ml) Stalagmometer for Chromium (2.5 ml) Stalagmometer Kit (includes: stand, filler bulb, beaker and counter) for Nickel, Acid Copper, Acid Zinc, Acid Dips Stalagmometer Kit (includes, same as above) for Chromium 表面张力滴量计 滴重计 滴数计 表面张力滴重计 表面张力滴定计 滴定计 扭抨法 表面张力计 表面张力仪 界面张力 仪 表面张力计 测滴计 屈氏粘力管 表面张力测试计 Stalagmometer surface tension drop count method Surface tension has long been recognized as an important physical characteristic of fluids and colloids that can affect biological processes. Scientists sought ways to measure this phenomenon, but reproducible results were difficult to obtain. Two approaches, developed to measure this subtle force, are displayed here. The process of drop formation by liquids is, in part, controlled by the surface tension of the fluid. To determine surface tension, the stalagmometer used a drop weight method, in which the number and weight of drops were compared to those from a reference liquid. Seemingly simple, the stalagmometer nevertheless required considerable skill and absolute cleanliness for readings to be meaningful.